Device for arresting locomotives or cars



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DEVICE FOR ARRESTING LOCOMOTIVES OR CARS.

SPECIFICATION forming part of Letters Patent No. 306,574, dated October14, 1884.

Application filed May 24, 1884. (No model.) I

To all whom it may concern:

Be it known that I, MAxIMILmN F. BON- ZANO, a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certainImprovements in Devices for Arresting. Locomotives or Cars, of which thefollowing is a specification.

My invention consists of an improvement, fully described and claimedhereinafter, in the device for arresting locomotives and cars for whichLetters Patent No. 293, 8-16 were granted to me February 19, 1884.

In the accompanying drawings, Figure l is a sectional elevation of thedevice for which the aforesaid Letters Patent were granted to meFebruary 19, 188i; Fig. 2, a sectional elevation of the device with myimprovement; Fig. 3, an end view of Fig. 2, looking in the direction ofthe arrow 1 5 and Fig. 4:, a vertical section on the line 1 2, Fig. 2.

Referring, in the first instance, to Fig. 1, which, as before remarked,illustrates my patented invention, A is one of the rails of a track, andB a shoe, which has on the under side a groove adapted to the rail, sothat while the shoe is at liberty to be moved freely on the rail it canhave no other movement independently of the said rail. To lugs on theshoeis pivoted a lever, D, one arm, (1,01? which extends upward, theother arm, 6, of the lever being above a block, t, resting on the railand being arranged to slide thereon with the shoe. \Vhen the wheel orany other part of a locomotive or car strikes the arm (I of the lever D,

the latter, together with the shoe and block 2',

will yield and slide along the rail; but at the same time such pressurewill be exerted on the rail, through the medium of the block, as willcause friction enough to absorb the momentum of the locomotive or car.

The object of my present invention is to so restrict this friction thatit cannot be in excess of that required for the gradual stoppage of thelocomotive or car, and this object I prefer to carry into effect by thedevices illustrated in Figs. 2, 3, 4. There is the same shoe, B, adaptedto the rail A as in my former patent, and there are lugs b b on theshoe, to which the lever D is pivoted. The arm 6 of the lever,

however, instead of being arranged to bear directly on the block, isarranged to bear on a spring, WV, interposed between the arm and theblock.

In connection with the spring and lever there mustbe a device forrestricting the downward movement of the arm e and the compression ofthe spring, and different appliances for this purpose will readilysuggest themselves to skilled mechanics. In the present instance thearresting device consists of a substantial screw, Y, passing freelythrough an extension of the arm 9 of the lever, and secured thereto bynuts t i. If, when a locomotive or car comes into contact with the armdot the lever D, the shock is a comparatively slight one, the spring maybe sufficient to resist that shook before the lever is arrested by thecontact of the screw Y with the shoe B, and the friction of the block onthe rail, tending to retard the movement of the shoe, and, finally, toarrest the locomotive or car,will be proportionate to the force exertedon the arm d of the lever. Should the shock be a violent one, however,the spring will be compressed only so far as the screw will permit, andhence the friction will be restricted by the screw, and cannot, if aproper spring is used, be so excessive as to arrest the locomotive orcar too abruptly. It will be understood that the springmust be such, asregards its rigidity and resiliency, that it will be the medium, underall circumstances, through which a proper friction of the block againstthe rail will be assured.

I claim as my invention- The combination of a shoe, 13, adapted to arail, a lever, D, pivoted to the shoe, a spring interposed between anarm on the lever and a block on the rail, and a device for restrictingthe movement of the lever, all substantiall y as set forth.

In testimony whereof I hax e signed my name to this specification in thepresence of two subscribing witnesses.

MAXIMILIAN F. BONZANO.

\Vitnesscs:

HARRY SMITH, HENRY Howson, J r.

2 Sheets-Sheet 1.

(No Model.)

P. W. BROWN.

STANDING PIPE FOR THE EXITINGUISHMENT OF FIRES. No. 306,575.

Patented. Oct. 14, 1884.

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Z'SPeets-Sheet 2.

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P. W. BROWN.

STANDING PIPE FOR THE EXTINGUISHMENT OF'FIRES.

Patented on. 14, 1884.

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